hot sale led tube T8 18w led tube

  Q1: What is the Warranty for the tubes? 
A1: For the tubes,we have 5 years warranty.If any quality problems on our side occured in this period ,we will take on the shipping cost and replacement.
Q2: What is colour temperature?
A2: Ervan's LED Lighting offer lamps in warm, natural,pure and cool white with colour temperatures measured in Kelvin (K). The lower the colour temperature is, the warmer the light given by the LED: 
Warm white =  2850-3050k 
Natural white =  3800-4200k 
Pure white =  4700-5250k 
Cool white = 6200-6800k
Q3: What is CRI?
A3: CRI is a figure which feedback the real objects colors.Higher CRI with higher cost.For LED tubes,the CRI is mostly 70-75Ra,and 80Ra with higher cost.
Q4: Why does my LED tube not work properly in extreme temperatures?
A4: Any temperature below 14 F or above 122 F may cause a LED bulb to flicker, dim, change color, or cease to function. Once the LED bulb is returned to an operational environment it should began to work properly.
Q5:Is there cheap shipping cost to import to our country? 
A5: For small order,express will be best.And for bulk order,sea ship way is best but take much time.
For urgent orders,we suggest via air to airport plus our ship partner send to your door.
Q6:Can we get support if we have our own market position? 
A6: Please inform us your detailed mind on your market demand,we will discuss and propose helpful suggestion for you,to find the best solution for you.

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